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What is AES 256 bit encryption and how does its process work?

High five if you made it to the Nigerian prince! Are you looking for help with your IT for business? Email me and let me know: alex.moen at znws.com AES 256 Bit Encryption is currently the most secure, commercially available encryption method. AES stands for Advanced Encryption Standard. AES uses what's called symmetric encryption. Meaning, it uses just one key to cipher and decipher data. 256 Bit refers to how many total different combinations are possible for ciphering, but I don't think you can fully appreciate that until you hear exactly what this whole process looks like. The process works like this: First the data gets divided into 4x4 blocks. This helps because it is not just a straight character by character change. So, if we're doing this for just letters on a single page, it wouldn't necessarily be as easy as finding one character to switch for another, or even two characters next to each other resulting in every two letter combination being switched with two other random letters (which is already near incomprehensible for our non-computer brains), but it's essentially 4 data points per row with 4 rows on top of each other. Second, what's called a key expansion occurs. What that means is that each letter in that 4x4 block gets expanded by an algorithm that looks random but isn't. You'd likely end up with a random-looking 4x4 block that now has 2 characters per part of the 4x4. Then, the two results are added together and is the first actual encryption. And, you might wonder how you add characters together, but remember that at its base everything in your computers is just 1s and 0s. Not just letters and numbers, but pictures and colors and sounds and everything else can all be broken down into long strings of 1s and 0s. A bit is a 1 or a 0, and 1-bit encryption would essentially be taking this super complicated resulting string of 1s and 0s would now be further complicated by having either a 1 or 0 added to it to "encrypt" it. A 2-bit level of encryption would have would have 4 different ways to change each and every bit; 4 bits would be able to introduce 16 different ways to encrypt this complicated mess, and this keeps on going up exponentially. 256-bit data encryption has 1.1 x 10^77 options. And, you might think that would be enough, but computers are super fast these days. So, after that, each byte (which is 8 bits of data) is then translated into another seemingly random byte, by an algorithm. Then, the AES encryption method shifts each row of bytes over by a number that's different for each row. THEN, the columns are mixed by multiplying each column by a predefined matrix determined by really high-level mathematics. AND THEN, the results of that are added by the same key expansion that occurred in step number two AGAIN. This all counts as one round. 256-bit encryption does 13 (THIRTEEN!) rounds of this. What it would take to brute force break this level of encryption, with today's fastest supercomputer, would still literally take millions of years. And then, do you know what happens next? Someone in your company makes their password "password" or sends a Nigerian prince their banking information, and the whole company gets screwed. ********************************************************* Subscribe for more videos like this- https://www.youtube.com/user/AlexMoen... Check out more Biz Tech Tips: Business IT tips ➤➤➤   • Biz Tech Tips